Home / 5,173.12-7,759.64-1,277.54

Finding the Fourth Proportional to 5,173.12, 7,759.64 and 1,277.54

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Solution

The fourth proportional to 5,173.12, 7,759.64 and 1,277.54 is: 1,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.12 : 7,759.64 = 1,277.54 : x
  2. Step 2: Convert to fraction form
    5,173.12/7,759.64 = 1,277.54/x
  3. Step 3: Cross multiply
    5,173.12x = 7,759.64 × 1,277.54
  4. Step 4: Simplify right side
    5,173.12x = 9,913,250.49
  5. Step 5: Solve for x
    x = 9,913,250.49/5,173.12
  6. Step 6: Final answer
    x = 1,916.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.